154 citations · 275 across the 5 of their papers we have counts for
5 papers
X-Ray, FUV, and UV Observations of alpha Centauri B: Determination of Long-term Magnetic Activity Cycle and Rotation Period
L. E. DeWarf, K. M. Datin, E. F. Guinan
We have been carrying out a study of stellar magnetic activity, dynamos, atmospheric physics, and spectral irradiances from a sample of solar-type G0-5 V stars with different ages.…
An Ultraviolet Study of the Short-Period Binary OO Aquilae
Bruce J. Hrivnak, Edward F. Guinan, Laurence E. DeWarf +1
OO Aql is a rare W UMa-type eclipsing binary in which the two solar-type stars may have only recently evolved into contact. The binary has an unusually high mass ratio (0.84), and…
Fundamental Properties and Distances of LMC Eclipsing Binaries II. HV 982
E. L. Fitzpatrick, I. Ribas, E. F. Guinan +3
We have determined the distance to a second eclipsing binary system (EB) in the Large Magellanic Cloud, HV982 (~B1 IV-V + ~B1 IV-V). The measurement of the distance -- among other…
The LMC eclipsing binary HV 2274: fundamental properties and comparison with evolutionary models
Ignasi Ribas, Edward F. Guinan, Edward L. Fitzpatrick +6
We are carrying out an international, multi-wavelength program to determine the fundamental properties and independent distance estimates of selected eclipsing binaries in the LMC…
The Distance to the Large Magellanic Cloud from the Eclipsing Binary HV2274
E. F. Guinan, E. L. Fitzpatrick, L. E. DeWarf +6
The distance to the Large Magellanic Cloud (LMC) is crucial for the calibration of the Cosmic Distance Scale. We derive a distance to the LMC based on an analysis of ground-based p…